In Contrast to Gall's Ideas About the Brain's Hemispheres, His

In contrast to Gall's ideas about the brain's hemispheres, his critic Flourens argued:

A) for the idea of mass action - the cerebrum was a single organ with the single function being thought.
B) for localized function, separate parts of the cerebrum had unique functions correlated with specific behavioral traits.
C) that it was impossible at the time to study the brain as technology did not allow any meaningful research.
D) None of these.